CN115144618A - Motor electrical variable measuring device and measuring method - Google Patents
Motor electrical variable measuring device and measuring method Download PDFInfo
- Publication number
- CN115144618A CN115144618A CN202211067713.0A CN202211067713A CN115144618A CN 115144618 A CN115144618 A CN 115144618A CN 202211067713 A CN202211067713 A CN 202211067713A CN 115144618 A CN115144618 A CN 115144618A
- Authority
- CN
- China
- Prior art keywords
- motor
- detected
- base
- sleeve
- driven shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention relates to a motor electrical variable measuring device and a measuring method, belonging to the field of electrical variable measurement.A base is provided with a motor to be detected, and the motor to be detected is electrically connected with a detecting device arranged on the base; the output shaft of the motor to be detected is connected with a connector, the connector is matched with a connecting seat arranged on the base, and a plurality of locking grooves are circumferentially and equidistantly arranged in the connecting seat; still be connected with torque adjustment mechanism on the base, torque adjustment mechanism is connected with the connecting seat, circumference expansion subassembly passes through the driving chain and connects the belt pulley with the coaxial fixed of connecting seat, circumference expansion subassembly is used for changing the drive ratio of driving chain, still is provided with the load subassembly on the base, circumference expansion subassembly is connected to the load subassembly for wait to detect the motor and provide the load and treat that the detection motor cools down, the realization is treated the output torque who detects the motor and is adjusted, with the influence of detection to the electric current.
Description
Technical Field
The invention relates to the field of electrical variable measurement, in particular to a motor electrical variable measuring device and a measuring method.
Background
The motor is a device which drives a starter rotor to rotate by the forced rotation of an electrified coil in a magnetic field, and a pinion on the rotor drives an engine flywheel to rotate.
In the production process of automobiles, starting motors are required to assist starting, when the starting motors are produced, strict electric variable detection is required to be carried out so as to avoid burning-out of the starting motors due to overcurrent caused by overlarge load born by the automobile at the starting moment, and in order to avoid burning-out of the starting motors, the starting motors with high power are generally adopted, so that the starting motors with large power are used although only small load exists when some engines with small displacement are started, and the large-power starting motors are still used, so that the load of the starting motors is excessive, and great waste is caused.
Most of the existing motor electrical variable measuring devices are load-fixed, that is, the load of the existing motor electrical variable measuring devices needs to be adjusted or replaced aiming at engines with different displacement, so that when motors with different models are frequently detected, a large amount of preparation work is needed, and the detection progress is slow.
Disclosure of Invention
The present invention is directed to a motor electrical variable measuring device and a measuring method thereof, so as to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a motor electrical variable measuring device comprising:
the motor to be detected is detachably mounted on the base, and the motor to be detected is electrically connected with a detection device arranged on the base;
the output shaft of the motor to be detected is detachably connected with a connector, the connector is matched with a connecting seat arranged on the base, a plurality of locking grooves are circumferentially and equidistantly arranged in the connecting seat, and a convex column arranged on the connector can slide in the locking grooves;
the base is also connected with a torque adjusting mechanism, the torque adjusting mechanism is connected with the connecting seat and comprises a circumference expanding component and an elastic tightening component, the circumference expanding component is connected with a belt pulley coaxially fixed with the connecting seat through a transmission chain, and the circumference expanding component is used for changing the transmission ratio of the transmission chain;
further comprising:
the load assembly is arranged on the base and connected with the circumferential expansion assembly and used for providing load for the motor to be detected and cooling the motor to be detected.
As a further scheme of the invention: the motor base is arranged at the lower part of the motor to be detected and can slide in the embedded groove, and the clamping table and the motor base can be locked through a pin.
As a still further scheme of the invention: the circumference expansion assembly comprises a driven shaft which is rotatably installed on the base, a plurality of groups of telescopic plates are circumferentially and equidistantly arranged on the driven shaft, one end, far away from the driven shaft, of each group of telescopic plates is connected with an arc-shaped part, and the plurality of arc-shaped parts can form an annular structure;
the circumference expansion subassembly is still including the activity setting mounting bracket on the base, the driven shaft rotate install in on the mounting bracket, be provided with drive structure on the mounting bracket when drive structure moves, flexible plate can change annular structure's circumference radius.
As a still further scheme of the invention: the telescopic plate comprises a plurality of fixed sleeve plates which are circumferentially and equidistantly arranged on the driven shaft and telescopic plates which are arranged in the fixed sleeve plates in a sliding manner, and one end of each telescopic plate, which is far away from the driven shaft, and the arc-shaped part;
the driven shaft is sleeved with a connecting sleeve in a sliding mode, and the connecting sleeve is connected with the telescopic plate through a supporting rod.
As a still further scheme of the invention: the driving structure comprises a driving device fixedly installed on the installation frame, an output shaft of the driving device penetrates through the installation frame and is connected with a lead screw, a threaded sleeve in threaded connection with the lead screw is arranged on the lead screw, a pushing piece is fixed on the threaded sleeve, and a sleeve, far away from the threaded sleeve, of the pushing piece is sleeved in an annular groove in the connection sleeve.
As a still further scheme of the invention: the elastic tightening assembly comprises a sliding groove formed in the base and a sliding block arranged in the sliding groove in a sliding manner, and the sliding block is fixedly connected with the mounting frame;
still be provided with in the spout with slider sliding connection's horizontal pole, the cover is equipped with the spring on the horizontal pole, the one end of spring with the slider is connected, the other end with the inner wall connection of spout.
As a still further scheme of the invention: the load assembly comprises a load device fixedly arranged on a base, the load device is connected with a transmission rod rotatably arranged on the base, and one end of the transmission rod, far away from the load device, is coaxially connected with a blade;
the load assembly further comprises a follow-up sleeve which is sleeved on the transmission rod in a sliding manner, a folded plate is connected between the follow-up sleeve and the driven shaft, and the folded plate is respectively in rotary connection with the follow-up sleeve and the driven shaft;
the driven shaft is connected with the follow-up sleeve through a bevel gear set.
As a still further scheme of the invention: two sets of limiting grooves are formed in the transmission rod, and the limiting grooves are in sliding fit with two sets of limiting blocks arranged on the inner wall of the follow-up sleeve.
A method of measuring an electrical variable of a motor using the apparatus, comprising the steps of:
the method comprises the following steps: the bolt on the clamping table is taken down, the motor base of the motor to be detected is inserted into the clamping table, the bolt is inserted back after the connecting head is connected with the connecting seat so as to fix the motor to be detected, and then the detecting device is connected with the motor to be detected by using a lead;
step two: before a motor to be detected is electrified, the transmission ratio of a transmission chain is minimized through a torque adjusting mechanism;
step three: the front control detection device supplies power to the motor to be detected, and detects the value of current flowing through the interior of the motor to be detected in real time when the motor to be detected works;
step four: after the motor to be detected works stably, the transmission ratio of the transmission chain is adjusted through the torque adjusting mechanism, and the current value of the transmission chain under the condition of different transmission ratios is detected by using the detection device;
step five: and (5) finishing detection, and taking down the motor to be detected.
Compared with the prior art, the invention has the beneficial effects that:
through the arranged torque adjusting mechanism, the radius of the annular structure is changed, the transmission ratio of the transmission chain is changed, the output load of the motor to be detected is adjustable, and the current flowing through the motor to be detected under different loads can be measured, so that the auxiliary starting of engines with different displacement is simulated, and the model of the motor required for assisting the starting of the engines with different displacement is searched;
through the centre gripping platform, gomphosis groove, motor base and the bolt that sets up, can realize treating that to detect the motor quick and stable fixed, improve measurement accuracy, simultaneously under the effect of connector and connecting seat, have certain fool-proofing effect to simplify when the fixed motor that waits to detect, its output shaft and torque adjustment mechanism's connecting step.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a motor electrical variable measuring device.
FIG. 2 is a schematic view of another embodiment of an apparatus for measuring an electrical variable of a motor.
Fig. 3 is a schematic view of a connection relationship between a motor to be detected and a clamping table in an embodiment of the motor electrical variable measuring device.
FIG. 4 is a cross-sectional view of a connecting socket in an embodiment of the device for measuring an electrical variable of a motor.
FIG. 5 is a schematic view of the construction of the circumferential expansion member in an embodiment of the electrical variable measuring device of the motor.
FIG. 6 is a schematic view of an alternative angle of the circumferential expansion member in an embodiment of the apparatus for measuring an electrical variable of a motor.
Fig. 7 is a schematic structural diagram of a driving structure in an embodiment of the motor electrical variable measuring device.
Fig. 8 is a schematic structural diagram of a driven shaft and a driving shaft in an embodiment of the motor electrical variable measuring device.
In the figure: 1. a base; 2. a clamping table; 3. a motor to be detected; 4. a motor base; 5. a fitting groove; 6. a bolt; 7. a connector; 8. a convex column; 9. a connecting seat; 10. a locking groove; 11. a drive chain; 12. a driven shaft; 13. fixing the sleeve plate; 14. an arcuate member; 15. a retractable plate; 16. a support bar; 17. a connecting sleeve; 18. a pusher member; 19. a mounting frame; 20. a threaded sleeve; 21. a screw rod; 22. a drive device; 23. a slider; 24. a cross bar; 25. a spring; 26. a bevel gear set; 27. folding the plate; 28. a follower sleeve; 29. a transmission rod; 30. a blade; 31. a load device; 32. and (4) a detection device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 8, in an embodiment of the present invention, an apparatus and a method for measuring an electrical variable of a motor include: the device comprises a base 1, a torque adjusting mechanism and a load assembly;
the motor detection device comprises a base 1, a motor to be detected 3, a clamping table 2, an embedded groove 5, a motor base 4 and a current detection instrument, wherein the motor to be detected 3 is detachably mounted on the base 1, the clamping table 2 is fixedly mounted on the base 1, the embedded groove 5 is formed in the clamping table 2, the motor base 4 arranged at the lower part of the motor to be detected 3 can slide in the embedded groove 5, the clamping table 2 and the motor base 4 can be locked through a bolt 6, the motor to be detected 3 is electrically connected with a detection device 32 arranged on the base 1, the detection device 32 is internally provided with a power supply and a current detection instrument, and after the detection device 32 is connected with the motor to be detected 3 through a lead, the detection device 32 can control the power supply in the detection device to supply power to the motor to be detected 3 and detect the current value flowing through the motor to be detected 3 in real time;
treat output shaft detachable of motor 3 and be connected with connector 7, connector 7 is in with the setting connecting seat 9 adaptation on the base 1, it is provided with a plurality of locking grooves 10 to be circumference equidistance in the connecting seat 9, the projection 8 slidable that sets up on the connector 7 in locking groove 10.
Before the motor 3 to be detected is detected, the motor 3 to be detected needs to be fixed, at the moment, the bolt 6 on the clamping table 2 is taken down firstly, the motor base 4 of the motor 3 to be detected is inserted into the embedded groove 5 in the clamping table 2, the motor base 4 moves to the end part of the embedded groove 5, the bolt 6 is inserted back to the original position at the moment, in the state, the bolt 6 penetrates through the clamping table 2 and the motor base 4, the motor 3 to be detected is firmly fixed on the base 1, the motor 3 to be detected can work more stably in the detection process, the accuracy of the motor electrical variable measurement result is improved, meanwhile, the motor 3 to be detected is fixed through the mode, the motor 3 to be detected can be replaced more conveniently after the detection is finished, and compared with the traditional bolt fixing, the preparation work before the measurement is greatly saved.
When pushing motor base 4 into gomphosis groove 5, it is in coaxial state with connecting seat 9 to wait to detect connector 7 of installing on the motor 3 output shaft, and when being along with connector 7 constantly is close to connecting seat 9, projection 8 on connector 7 will be with locking groove 10 adaptation, and locking groove 10 is greater than the circumference diameter of projection 8 in the one side opening that is close to connector 7 on connecting seat 9, make when connecting connector 7 and connecting seat 9, need not special aim at projection 8 locking groove 10, certain fool-proof effect has, and further simplify when fixing and wait to detect motor 3, make its output shaft and torque adjusting mechanism's connection step.
The inside of the locking groove 10 is a 90-degree bent shape, and the bending direction is the same as the rotating direction of the output shaft after the power supply of the motor 3 to be detected, so that when the motor 3 to be detected is powered on and works, the connector 7 and the connecting seat 9 have a self-locking state, and the connection stability of the connector 7 and the connecting seat is improved.
Referring to fig. 5, 6, and 7, the base 1 is further connected to a torque adjusting mechanism, the torque adjusting mechanism is connected to the connecting seat 9, and includes a circumferential expanding assembly and an elastic tightening assembly, the circumferential expanding assembly is connected to a belt pulley coaxially fixed to the connecting seat 9 through a transmission chain 11, and the circumferential expanding assembly is configured to change a transmission ratio of the transmission chain 11;
the circumference expansion assembly comprises a driven shaft 12 rotatably installed on the base 1, a plurality of groups of telescopic plates are circumferentially and equidistantly arranged on the driven shaft 12, one end, far away from the driven shaft 12, of each group of telescopic plates is connected with an arc-shaped part 14, and the plurality of arc-shaped parts 14 can form an annular structure;
the circumference expansion assembly further comprises a mounting frame 19 movably arranged on the base 1, the driven shaft 12 is rotatably arranged on the mounting frame 19, a driving structure is arranged on the mounting frame 19, and when the driving structure acts, the telescopic plate can change the circumference radius of the annular structure;
the telescopic plate comprises a plurality of fixed sleeve plates 13 which are circumferentially and equidistantly arranged on the driven shaft 12 and telescopic plates 15 which are arranged in the fixed sleeve plates 13 in a sliding manner, and one ends of the telescopic plates 15, far away from the driven shaft 12, and the arc-shaped parts 14;
a connecting sleeve 17 is slidably sleeved on the driven shaft 12, and the connecting sleeve 17 is connected with the expansion plate 15 through a support rod 16;
the driving structure comprises a driving device 22 fixedly installed on the installation frame 19, an output shaft of the driving device 22 penetrates through the installation frame 19 and is connected with a screw rod 21, a threaded sleeve 20 in threaded connection with the screw rod 21 is arranged on the screw rod 21, a pushing piece 18 is fixed on the threaded sleeve 20, and one end, away from the threaded sleeve 20, of the pushing piece 18 is sleeved in an annular groove in the connection sleeve 17.
Specifically, the transmission chain 11 is sleeved between the annular structure and the belt pulley, the circumferential radius of the belt pulley is constant, at the moment, if the diameter of the annular structure is changed, the transmission ratio of the transmission chain 11 can be changed, in the process of the operation of the motor 3 to be detected, the output shaft of the motor is connected with the load device 31 through the connector 7, the connecting seat 9, the belt pulley, the transmission chain 11 and the annular structure, and the load device 31 mainly provides resistance for the operation of the motor 3 to be detected.
Before the motor 3 to be detected is started, the radius of the annular structure is the largest, the transmission ratio of the transmission chain 11 is the smallest at the moment, in the state, the starting load of the motor 3 to be detected is smaller, the phenomenon that the motor 3 to be detected is burnt out instantly when being started due to overlarge starting load can be effectively avoided under the condition of heavy load, and after the motor 3 to be detected works stably, the output load of the motor 3 to be detected can be adjusted by changing the radius of the annular structure, so that the current flowing through the motor 3 to be detected under different load conditions can be measured, and the auxiliary starting of engines with different displacement can be simulated.
In a specific using process, the driving device 22 is controlled to work to drive the screw rod 21 connected with the driving device to rotate, the threaded sleeve 20 which is arranged on the screw rod 21 and is in threaded connection with the screw rod is enabled to move in the axial direction of the screw rod 21, the pushing part 18 is used for driving the connecting sleeve 17 to move on the driven shaft 12, and the connecting sleeve 17 and the driven shaft 12 have certain guiding capacity for the threaded sleeve 20, so that the threaded sleeve 20 can be effectively prevented from rotating along with the screw rod 21.
When the connecting sleeve 17 moves, the supporting rod 16 pushes the expansion plate 15 to move towards the outside of the fixed sleeve plate 13, and the plurality of arc-shaped pieces 14 are circumferentially dispersed all around, so that the radius of the annular structure formed by the plurality of arc-shaped pieces 14 is increased, and the transmission ratio of the transmission chain 11 is reduced.
When the transmission ratio of the transmission chain 11 needs to be increased, the driving device 22 only needs to be controlled to reversely rotate.
Referring to fig. 7, the elastic tightening assembly includes a sliding slot formed on the base 1 and a sliding block 23 slidably disposed in the sliding slot, and the sliding block 23 is fixedly connected to the mounting frame 19;
still be provided with in the spout with slider 23 sliding connection's horizontal pole 24, the cover is equipped with spring 25 on the horizontal pole 24, spring 25's one end with slider 23 is connected, the other end with the inner wall of spout is connected.
Since the length of the transmission chain 11 is constant, when the radius of the ring-shaped mechanism is increased, the mounting bracket 19 obviously moves towards the motor 3 to be detected, that is, the mounting bracket 19 must be slidably disposed on the base 1 due to functional requirements, and meanwhile, in order to ensure that the transmission chain 11 has a sufficient friction with the pulley and the ring-shaped mechanism, the elastic tightening assembly is disposed, and in the maximum transmission ratio state of the transmission chain 11, the spring 25 in the elastic tightening assembly is already in a compressed state, no slip phenomenon occurs between the transmission chain 11 and the pulley and between the transmission chain 11 and the ring-shaped mechanism, when the transmission ratio of the transmission chain 11 is decreased, the circumferential radius of the ring-shaped mechanism is decreased, the mounting bracket 19 moves towards the motor 3 to be detected, the spring 25 is further compressed, the friction between the transmission chain 11 and the pulley and the ring-shaped mechanism is further increased, and no slip phenomenon occurs between the three.
Referring to fig. 1, fig. 2, and fig. 8, the apparatus for measuring an electrical variable of a motor further includes:
the load assembly is arranged on the base 1, is connected with the circumferential expansion assembly and is used for providing load for the motor 3 to be detected and cooling the motor 3 to be detected;
the load assembly comprises a load device 31 fixedly arranged on a base 1, the load device 31 is connected with a transmission rod 29 rotatably arranged on the base 1, and one end of the transmission rod 29 far away from the load device 31 is coaxially connected with a blade 30;
the load assembly further comprises a follow-up sleeve 28 which is sleeved on the transmission rod 29 in a sliding manner, two groups of limiting grooves are formed in the transmission rod 29 and are matched with two groups of limiting blocks arranged on the inner wall of the follow-up sleeve 28 in a sliding manner, a folded plate 27 is connected between the follow-up sleeve 28 and the driven shaft 12, and the folded plate 27 is respectively connected with the follow-up sleeve 28 and the driven shaft 12 in a rotating manner;
the driven shaft 12 is connected with the follow-up sleeve 28 through a bevel gear set 26; the bevel gear set 26 includes a first bevel gear fixed to the driven shaft 12 and a second bevel gear engaged with the first bevel gear and rotatably mounted on the follower sleeve 28.
When the driven shaft 12 rotates, the driven sleeve 28 is driven to rotate through the bevel gear set 26, at this time, the driven sleeve 28 drives the transmission rod 29 to rotate under the action of the limiting block and the limiting groove, so that the load of the load device 31 can be effectively transmitted to the output shaft of the motor 3 to be detected, meanwhile, the transmission rod 29 also drives the blades 30 to rotate, so that the air circulation around the motor 3 to be detected is accelerated, the motor 3 to be detected is cooled, and the motor 3 to be detected is prevented from being burnt due to overhigh temperature under the condition of large load.
And under the effect of stopper and spacing groove, when mounting bracket 19 takes place to remove, the power on the driven shaft 12 all can be effectively transmitted to the transfer line 29 on.
As an embodiment of the present invention, there is also proposed a method of measuring an electric variable of a motor using the device, including the steps of:
the method comprises the following steps: taking down the bolt 6 on the clamping table 2, inserting the motor base 4 of the motor 3 to be detected into the clamping table 2, inserting the bolt 6 back after the connection of the connector 7 and the connecting seat 9 is completed so as to fix the motor 3 to be detected, and then connecting the detection device 32 and the motor 3 to be detected by using a lead;
step two: before the motor 3 to be detected is electrified, the transmission ratio of the transmission chain 11 is minimized through a torque adjusting mechanism;
step three: the front control detection device 32 supplies power to the motor 3 to be detected, and detects the value of current flowing through the interior of the motor 3 to be detected in real time when the motor 3 to be detected works;
step four: after the motor 3 to be detected works stably, the transmission ratio of the transmission chain 11 is adjusted through the torque adjusting mechanism, and the current value of the transmission chain 11 under the condition of different transmission ratios is detected by using the detection device 32;
step five: and (5) finishing detection, and taking down the motor 3 to be detected.
In summary, before the motor 3 to be detected is detected, the motor 3 to be detected needs to be fixed, at this time, the bolt 6 on the clamping table 2 is taken down, the motor base 4 of the motor 3 to be detected is inserted into the embedded groove 5 in the clamping table 2, the motor base 4 moves to the end of the embedded groove 5, and at this time, the bolt 6 is inserted back to the original position, in this state, the bolt 6 penetrates through the clamping table 2 and the motor base 4, so that the motor 3 to be detected is firmly fixed on the base 1, and the motor 3 to be detected can work more stably in the detection process, so as to improve the accuracy of the motor electrical variable measurement result, and meanwhile, the motor 3 to be detected is fixed in this way, so that the motor 3 to be detected can be replaced more conveniently after the detection is completed, compared with the conventional bolt fixing, the preparation work before the measurement is greatly saved.
When pushing motor base 4 into gomphosis groove 5, it is in coaxial state with connecting seat 9 to wait to detect connector 7 of installing on the motor 3 output shaft, and when being along with connector 7 constantly is close to connecting seat 9, projection 8 on connector 7 will be with locking groove 10 adaptation, and locking groove 10 is greater than the circumference diameter of projection 8 in the one side opening that is close to connector 7 on connecting seat 9, make when connecting connector 7 and connecting seat 9, need not special aim at projection 8 locking groove 10, certain fool-proof effect has, and further simplify when fixing and wait to detect motor 3, make its output shaft and torque adjusting mechanism's connection step.
Wherein, the inside of above-mentioned locking groove 10 is 90 degrees bendings, and the direction of bending is the same with the output shaft pivoted direction after waiting to detect motor 3 power supply for when waiting to detect motor 3 circular telegram and during operation, connector 7 and connecting seat 9 have a state of auto-lock, have improved the stability of the two connections.
Specifically, the transmission chain 11 is sleeved between the annular structure and the belt pulley, the circumferential radius of the belt pulley is constant, at the moment, if the diameter of the annular structure is changed, the transmission ratio of the transmission chain 11 can be changed, in the process of the operation of the motor 3 to be detected, the output shaft of the motor is connected with the load device 31 through the connector 7, the connecting seat 9, the belt pulley, the transmission chain 11 and the annular structure, and the load device 31 mainly provides resistance for the operation of the motor 3 to be detected.
Before the motor 3 to be detected is started, the radius of the annular structure is the largest, the transmission ratio of the transmission chain 11 is the smallest at the moment, in the state, the starting load of the motor 3 to be detected is smaller, the phenomenon that the motor 3 to be detected is burnt out instantly when being started due to overlarge starting load can be effectively avoided under the condition of heavy load, and after the motor 3 to be detected works stably, the output load of the motor 3 to be detected can be adjusted by changing the radius of the annular structure, so that the current flowing through the motor 3 to be detected under different load conditions can be measured, and the auxiliary starting of engines with different displacement can be simulated.
In a specific using process, the driving device 22 is controlled to work to drive the screw rod 21 connected with the driving device to rotate, the threaded sleeve 20 which is arranged on the screw rod 21 and is in threaded connection with the screw rod is enabled to move in the axial direction of the screw rod 21, the pushing part 18 is used for driving the connecting sleeve 17 to move on the driven shaft 12, and the connecting sleeve 17 and the driven shaft 12 have certain guiding capacity for the threaded sleeve 20, so that the threaded sleeve 20 can be effectively prevented from rotating along with the screw rod 21.
When the connecting sleeve 17 moves, the supporting rod 16 pushes the expansion plate 15 to move towards the outside of the fixed sleeve plate 13, and the plurality of arc-shaped pieces 14 are circumferentially dispersed all around, so that the radius of the annular structure formed by the plurality of arc-shaped pieces 14 is increased, and the transmission ratio of the transmission chain 11 is reduced.
When the transmission ratio of the transmission chain 11 needs to be increased, the driving device 22 only needs to be controlled to reversely rotate.
Since the length of the transmission chain 11 is constant, when the radius of the ring-shaped mechanism is increased, the mounting bracket 19 obviously moves towards the motor 3 to be detected, that is, the mounting bracket 19 must be slidably disposed on the base 1 due to functional requirements, and meanwhile, in order to ensure that the transmission chain 11 has a sufficient friction with the pulley and the ring-shaped mechanism, the elastic tightening assembly is disposed, and in the maximum transmission ratio state of the transmission chain 11, the spring 25 in the elastic tightening assembly is already in a compressed state, no slip phenomenon occurs between the transmission chain 11 and the pulley and between the transmission chain 11 and the ring-shaped mechanism, when the transmission ratio of the transmission chain 11 is decreased, the circumferential radius of the ring-shaped mechanism is decreased, the mounting bracket 19 moves towards the motor 3 to be detected, the spring 25 is further compressed, the friction between the transmission chain 11 and the pulley and the ring-shaped mechanism is further increased, and no slip phenomenon occurs between the three.
When the driven shaft 12 rotates, the driven sleeve 28 is driven to rotate through the bevel gear set 26, at the moment, the driven sleeve 28 drives the transmission rod 29 to rotate under the action of the limiting block and the limiting groove, so that the load of the load device 31 can be effectively transmitted to the output shaft of the motor 3 to be detected, meanwhile, the transmission rod 29 also drives the blades 30 to rotate, so that the air circulation around the motor 3 to be detected is accelerated, the motor 3 to be detected is cooled, and the problem that the motor 3 to be detected is burnt due to overhigh temperature under the condition of large load is avoided.
And under the effect of stopper and spacing groove, when mounting bracket 19 takes place to remove, the power on the driven shaft 12 all can be effectively transmitted to the transfer line 29 on.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (9)
1. A motor electrical variable measuring device, comprising:
the detection device comprises a base (1), wherein a motor (3) to be detected is detachably mounted on the base (1), and the motor (3) to be detected is electrically connected with a detection device (32) arranged on the base (1);
the output shaft of the motor (3) to be detected is detachably connected with a connector (7), the connector (7) is matched with a connecting seat (9) arranged on the base (1), a plurality of locking grooves (10) are circumferentially and equidistantly arranged in the connecting seat (9), and a convex column (8) arranged on the connector (7) can slide in the locking grooves (10);
the base (1) is also connected with a torque adjusting mechanism, the torque adjusting mechanism is connected with the connecting seat (9) and comprises a circumferential expansion assembly and an elastic tightening assembly, the circumferential expansion assembly is connected with a belt pulley coaxially fixed with the connecting seat (9) through a transmission chain (11), and the circumferential expansion assembly is used for changing the transmission ratio of the transmission chain (11);
further comprising:
the load assembly is arranged on the base (1) and connected with the circumferential expansion assembly and used for providing load for the motor (3) to be detected and cooling the motor (3) to be detected.
2. A motor electrical variable measuring device according to claim 1, characterized in that a clamping table (2) is fixedly mounted on the base (1), a fitting groove (5) is formed on the clamping table (2), a motor base (4) arranged at the lower part of the motor (3) to be detected can slide in the fitting groove (5), and the clamping table (2) and the motor base (4) can be locked by a bolt (6).
3. The motor electrical variable measuring device according to claim 1, characterized in that the circumferential expansion assembly comprises a driven shaft (12) rotatably mounted on the base (1), a plurality of groups of telescopic plate members are circumferentially and equidistantly arranged on the driven shaft (12), one end of each group of telescopic plate members, which is far away from the driven shaft (12), is connected with an arc-shaped member (14), and a plurality of arc-shaped members (14) can form an annular structure;
circumference expansion subassembly is still including the activity setting mounting bracket (19) on base (1), driven shaft (12) rotate install in on mounting bracket (19), be provided with drive structure on mounting bracket (19) when drive structure moves, flexible plate can change annular structure's circumference radius.
4. A motor electrical variable measuring device according to claim 3, characterized in that the telescopic plate member comprises a plurality of fixed sleeve plates (13) which are circumferentially and equidistantly mounted on the driven shaft (12) and a telescopic plate (15) which is slidably arranged in the fixed sleeve plates (13), wherein one end of the telescopic plate (15) far away from the driven shaft (12) is connected with the arc-shaped member (14);
the sliding sleeve is equipped with connecting sleeve (17) on driven shaft (12), connecting sleeve (17) are connected through bracing piece (16) expansion plate (15).
5. The motor electrical variable measuring device of claim 4, characterized in that the driving structure comprises a driving device (22) fixedly mounted on the mounting frame (19), an output shaft of the driving device (22) penetrates through the mounting frame (19) and is connected with a lead screw (21), a threaded sleeve (20) in threaded connection with the lead screw (21) is arranged on the lead screw (21), a pushing member (18) is fixed on the threaded sleeve (20), and a end of the pushing member (18) far away from the threaded sleeve (20) is sleeved in an annular groove on the connecting sleeve (17).
6. A motor electrical variable measuring device according to claim 3, characterized in that the elastic tightening assembly comprises a sliding groove arranged on the base (1) and a sliding block (23) arranged in the sliding groove in a sliding way, wherein the sliding block (23) is fixedly connected with the mounting frame (19);
still be provided with in the spout with slider (23) sliding connection's horizontal pole (24), the cover is equipped with spring (25) on horizontal pole (24), the one end of spring (25) with slider (23) are connected, the other end with the inner wall of spout is connected.
7. A motor electrical variable measuring device according to claim 3, characterized in that the load assembly comprises a load device (31) fixedly mounted on the base (1), the load device (31) is connected with a transmission rod (29) rotatably mounted on the base (1), and a blade (30) is coaxially connected with one end of the transmission rod (29) far away from the load device (31);
the load assembly further comprises a follow-up sleeve (28) which is sleeved on the transmission rod (29) in a sliding mode, a folded plate (27) is connected between the follow-up sleeve (28) and the driven shaft (12), and the folded plate (27) is respectively connected with the follow-up sleeve (28) and the driven shaft (12) in a rotating mode;
the driven shaft (12) is connected with the follow-up sleeve (28) through a bevel gear set (26).
8. The motor electrical variable measuring device according to claim 7, characterized in that two sets of limiting grooves are formed on the transmission rod (29), and the limiting grooves are in sliding fit with two sets of limiting blocks arranged on the inner wall of the follow-up sleeve (28).
9. A method for measuring an electrical variable of a motor using the apparatus of claim 2, comprising the steps of:
the method comprises the following steps: taking down the bolt (6) on the clamping table (2), inserting the motor base (4) of the motor (3) to be detected into the clamping table (2), inserting the bolt (6) back after the connection of the connector (7) and the connecting seat (9) is completed so as to fix the motor (3) to be detected, and then connecting the detection device (32) and the motor (3) to be detected by using a lead;
step two: before the motor (3) to be detected is electrified, the transmission ratio of the transmission chain (11) is minimum through the torque adjusting mechanism;
step three: the front control detection device (32) supplies power to the motor (3) to be detected, and detects the value of current flowing through the interior of the motor (3) to be detected in real time when the motor (3) to be detected works;
step four: after the motor (3) to be detected works stably, the transmission ratio of the transmission chain (11) is adjusted through the torque adjusting mechanism, and the current value of the transmission chain (11) under the condition of different transmission ratios is detected by using the detection device (32);
step five: and (5) finishing detection, and taking down the motor (3) to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211067713.0A CN115144618B (en) | 2022-09-01 | 2022-09-01 | Motor electrical variable measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211067713.0A CN115144618B (en) | 2022-09-01 | 2022-09-01 | Motor electrical variable measuring device and measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115144618A true CN115144618A (en) | 2022-10-04 |
| CN115144618B CN115144618B (en) | 2022-12-20 |
Family
ID=83415467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211067713.0A Active CN115144618B (en) | 2022-09-01 | 2022-09-01 | Motor electrical variable measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115144618B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308600A (en) * | 2022-10-13 | 2022-11-08 | 江苏瀚丰机械制造有限公司 | Motor test platform and test method |
| CN117378476A (en) * | 2023-12-12 | 2024-01-12 | 江苏沣田农业装备机械有限公司 | Self-lifting reel sprinkler |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5313151A (en) * | 1991-05-14 | 1994-05-17 | Rotork Controls Limited | Induction type electric motor drive actuator system |
| EP0612991A1 (en) * | 1993-02-25 | 1994-08-31 | Daniel Fuchs | Device for measuring torque between a motor assembly and a load assembly |
| US5424960A (en) * | 1991-09-24 | 1995-06-13 | Nf. T&M. Systems. Inc. | Apparatus for measuring torque, inertia moment, output and backlash using stepping motor |
| JP2010014264A (en) * | 2008-07-07 | 2010-01-21 | Toyota Motor Corp | Controller of variable displacement pump motor type transmission |
| US20100089109A1 (en) * | 2007-02-23 | 2010-04-15 | Phoniro Ab | Lock device |
| US20110183805A1 (en) * | 2010-01-22 | 2011-07-28 | Foster Assets Corporation | Motor having an integrated torque sensor |
| US20110272898A1 (en) * | 2010-05-04 | 2011-11-10 | Karl Hiestand | Clamping device |
| CN103620944A (en) * | 2011-07-04 | 2014-03-05 | 株式会社捷太格特 | Motor control device and steering device for vehicle |
| CN204441617U (en) * | 2015-04-02 | 2015-07-01 | 国家电网公司 | A kind of regulation and control self-locking ground detection device |
| CN106525450A (en) * | 2016-11-14 | 2017-03-22 | 山东工拓机电设备有限公司 | Testing method and apparatus for power system matching of double-shaft-drive electric vehicle |
| KR20180043657A (en) * | 2016-10-20 | 2018-04-30 | 서울대학교산학협력단 | Substrate for measuring liquid thickness, apparatus for the same, and method for the same |
| CN110242630A (en) * | 2019-06-12 | 2019-09-17 | 农业农村部南京农业机械化研究所 | A kind of hydraulic closed system motor characteristic test testing stand |
| CN210005245U (en) * | 2019-05-22 | 2020-01-31 | 南京拓众传动科技有限公司 | gearbox transmission efficiency detection device |
| CN210603357U (en) * | 2019-11-25 | 2020-05-22 | 山东索云信息科技有限公司 | Centralized control probe with protection mechanism |
| CN112505556A (en) * | 2020-11-05 | 2021-03-16 | 宁波工程学院 | New energy automobile battery forward and reverse variable acceleration capacity test machine |
| CN113466693A (en) * | 2021-06-30 | 2021-10-01 | 张全 | Load simulation method based on typical load and linear combination thereof |
| CN214838860U (en) * | 2021-06-28 | 2021-11-23 | 镇江市得亨建设工程有限公司 | Quick-adjustment bidirectional-locking mounting device for mounting pipeline bracket |
| CN215806103U (en) * | 2021-05-31 | 2022-02-11 | 深圳市惠康电机制造有限公司 | Linear motor driver and electronic device |
| CN216812750U (en) * | 2021-09-14 | 2022-06-24 | 深圳市巡域科技有限公司 | Side pushing type motor transmission mechanism |
-
2022
- 2022-09-01 CN CN202211067713.0A patent/CN115144618B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5313151A (en) * | 1991-05-14 | 1994-05-17 | Rotork Controls Limited | Induction type electric motor drive actuator system |
| US5424960A (en) * | 1991-09-24 | 1995-06-13 | Nf. T&M. Systems. Inc. | Apparatus for measuring torque, inertia moment, output and backlash using stepping motor |
| EP0612991A1 (en) * | 1993-02-25 | 1994-08-31 | Daniel Fuchs | Device for measuring torque between a motor assembly and a load assembly |
| US20100089109A1 (en) * | 2007-02-23 | 2010-04-15 | Phoniro Ab | Lock device |
| JP2010014264A (en) * | 2008-07-07 | 2010-01-21 | Toyota Motor Corp | Controller of variable displacement pump motor type transmission |
| US20110183805A1 (en) * | 2010-01-22 | 2011-07-28 | Foster Assets Corporation | Motor having an integrated torque sensor |
| US20110272898A1 (en) * | 2010-05-04 | 2011-11-10 | Karl Hiestand | Clamping device |
| CN103620944A (en) * | 2011-07-04 | 2014-03-05 | 株式会社捷太格特 | Motor control device and steering device for vehicle |
| CN204441617U (en) * | 2015-04-02 | 2015-07-01 | 国家电网公司 | A kind of regulation and control self-locking ground detection device |
| KR20180043657A (en) * | 2016-10-20 | 2018-04-30 | 서울대학교산학협력단 | Substrate for measuring liquid thickness, apparatus for the same, and method for the same |
| CN106525450A (en) * | 2016-11-14 | 2017-03-22 | 山东工拓机电设备有限公司 | Testing method and apparatus for power system matching of double-shaft-drive electric vehicle |
| CN210005245U (en) * | 2019-05-22 | 2020-01-31 | 南京拓众传动科技有限公司 | gearbox transmission efficiency detection device |
| CN110242630A (en) * | 2019-06-12 | 2019-09-17 | 农业农村部南京农业机械化研究所 | A kind of hydraulic closed system motor characteristic test testing stand |
| CN210603357U (en) * | 2019-11-25 | 2020-05-22 | 山东索云信息科技有限公司 | Centralized control probe with protection mechanism |
| CN112505556A (en) * | 2020-11-05 | 2021-03-16 | 宁波工程学院 | New energy automobile battery forward and reverse variable acceleration capacity test machine |
| CN215806103U (en) * | 2021-05-31 | 2022-02-11 | 深圳市惠康电机制造有限公司 | Linear motor driver and electronic device |
| CN214838860U (en) * | 2021-06-28 | 2021-11-23 | 镇江市得亨建设工程有限公司 | Quick-adjustment bidirectional-locking mounting device for mounting pipeline bracket |
| CN113466693A (en) * | 2021-06-30 | 2021-10-01 | 张全 | Load simulation method based on typical load and linear combination thereof |
| CN216812750U (en) * | 2021-09-14 | 2022-06-24 | 深圳市巡域科技有限公司 | Side pushing type motor transmission mechanism |
Non-Patent Citations (4)
| Title |
|---|
| CHANG-EOB KIM 等: "Design and analysis of linear voice coil motor for automatic transmission", 《2016 19TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS)》 * |
| LE SUN 等: "Split ratio design technique of the magnetic-gear dual-rotor motor", 《2016 IEEE CONFERENCE ON ELECTROMAGNETIC FIELD COMPUTATION (CEFC)》 * |
| 张旭等: "扭矩自检型内曲线液压马达的结构原理", 《山东工业技术》 * |
| 王欢等: "HA-自动变量马达在行走机械上的应用", 《机械工程与自动化》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308600A (en) * | 2022-10-13 | 2022-11-08 | 江苏瀚丰机械制造有限公司 | Motor test platform and test method |
| CN115308600B (en) * | 2022-10-13 | 2022-12-16 | 江苏瀚丰机械制造有限公司 | Motor test platform and test method |
| CN117378476A (en) * | 2023-12-12 | 2024-01-12 | 江苏沣田农业装备机械有限公司 | Self-lifting reel sprinkler |
| CN117378476B (en) * | 2023-12-12 | 2024-02-13 | 江苏沣田农业装备机械有限公司 | Self-lifting reel sprinkler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115144618B (en) | 2022-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115144618B (en) | Motor electrical variable measuring device and measuring method | |
| CN204179884U (en) | The revolution of motor stator core drawing-die rule and indexing means | |
| CN104808691B (en) | A kind of circumferentially positioned formula motor experiment stand multiple degrees of freedom quick centering device | |
| CN111266861B (en) | Assembly fixture of low-pressure turbine of engine | |
| CN105004889A (en) | End surface positioning type motor experiment bench multi-degree of freedom rapid centring device | |
| CN106840702B (en) | Folding fatigue test device for automobile outer rearview mirror | |
| CN213196398U (en) | Motor shaft press-fitting machine | |
| CN208568166U (en) | A kind of two plane balancing machine | |
| CN214795115U (en) | Testing arrangement of frameless motor | |
| CN209056997U (en) | A kind of motor being easily installed | |
| CN214069772U (en) | Automatic winding device for copper wire motor | |
| CN208811502U (en) | A kind of part alignment tool | |
| CN105014101A (en) | Automatic finish turning lathe for motor rotor | |
| CN221269536U (en) | Cable processing centre gripping coalignment | |
| CN220122715U (en) | Split type motor drive shaft | |
| CN212008071U (en) | Bending test device | |
| CN110517841B (en) | Arrangement protective equipment for nuclear magnetic resonance superconducting magnet | |
| CN209992185U (en) | Running-in test bench for automobile production | |
| CN219485024U (en) | Part turntable for machine tool | |
| CN219181313U (en) | Motor with adjustable installation direction | |
| CN204547832U (en) | Two Retractive leg holders | |
| CN220582115U (en) | Precise rotary cradle head device | |
| CN115338626B (en) | Mounting structure convenient to adjust water pump rotor axial position | |
| CN204705468U (en) | Main shaft running-in system Placement Cell | |
| CN218447539U (en) | Die adjusting mechanism for winding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |